6) Exorcist: The Beginning
Like Woody Allen’s September, reshoots on the Exorcist prequel didn’t just retool an existing film, they created two entirely separate, complete movies. The difference with the Exorcist project was that the reshoots were entirely out of the hands of the original director, Paul Schrader, and instead given over to a different filmmaker, Renny Harlin.
Another difference: unlike September, you can watch both versions of the twice-shot Exorcist prequel. Harlin’s Exorcist: The Beginning stars Stellan Skarsgard, Izabella Scorupco and James D’Arcy and is a straightforward (some would say generic) horror, while Schrader’s Dominion: Prequel to the Exorcist stars Skarsgard, Gabriel Mann and Clara Bellar and is a quieter meditation on the nature of evil. Unfortunately, neither were particularly well-received.